Chair



FIG. 1 is an isometric view of a chair showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is the opposite side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The back view forms no part of the claimed design. 

The ornamental design for a chair, as shown and described. 